Jack for automobiles



J. S. COOK.

JACK FOR AUTOMOBILES. APPLICATION FILED SEPT. 15, 1919.

L 3&8, fig? Patented Aug. 3, 1920 NT osrics.

JOSEPH S. COOK, OF TACOMA, WASHINGTON.

JACK FOR AUTOMOBILES.

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Specification of Letters Patent.

Patented Aug. 3, 192e,

Application filed September 15, 1919. Serial No. 323,889.

devices for use in raising and supporting a r the same.

vehicle axle from the ground.

The object of my invention is to provide a device of this character which is cheap.

and easy to. make and by the use-0f which the vehicle axle may be raised and supported from the ground by using the propulsivepower of the vehicle.

I will herein describe the manner of constructing my invention in the preferred form and will then define what I deem to be patentable byth'e. claims.

Figure 1 shows a side view of the rear part of an automobile with my device in Fig. 2 shows the rear portion of the automobile raised upon a supporting block and with the post or strut member, in position for-supporting the automobile.

Fig. 3 shows the device in a final stage,

or. that wherein the vehicle axle is supported by the strut or post, with the wheel clear of the ground.

Fig. 4' shows in perspective my device separate from the car and in the position fogI the reception of the wheel thereon.

supporting the car through the medium of the wheel in raised position, and second, a post or strut member which is adapted to serve, first, as an inclined run-way bythe use of which the wheel may be placed upon the block and which is then adapted to be placed vertically under the axle to sustain The ,block 1 is of a thickness sufiicient to support the wheel in a raised position a suitable distance above the ground.

This block ordinarily, would be from three to four inches thick, although the exact'thickness is immaterial, so long as it is suflicient for the purpose. V preferably thicker at one edge than at the other, so that its upper surface is inclined. Along the thin edges of the block, I provide it with one or more steps or ledges, as 10 invention comprises two principal parts, first a block l'which' is designed forcomparatively near one $1 This block is and 11, these being designed for supporting engagement with one end of the post or runway member 2.

The post or run-way member 2 at one end from the end of the upper layer. The end of this post 2 which is away from the block when in use as a run-way member, is preferably beveled so as to cause but a slight rise in running the wheel thereon. It is also preferably provided. with a notch 20, of such character asto receive the axle and to secureand hold the same thereon.

In usin the'device it is assembled in the manner s own in Fi 4, wherein one end ofxtherun-way mem er 2 is supported by the ledges of the. block 1. In this position it is assembled in line'with the wheel which it is desired to raise from the ground The car is then moved so as to bring the wheel upon the block 1. The brakes of the car are then set so as to hold it in this position. The run-way member 2 is then removed and placed under the axle in the position shown in Fig. 2; the car is then permitted to run down off of theblock 1, until the post is in a vertical position,,or as shown in Fig. 3.

It is then held'by application of the'brakes and the block 1 may then be removed.

The end of the run-way member. which is placed upon the block 1, and which, when it is used as a supporting post is placed upon the ground, has t is end edge out slightly on a bevel as shown at 21. The a high point of the end ed e is thus brought e of the post. In use, this edge of the post is placed next to the block, so as, when the car moves down the block, it will have a shorter distance to go inorder to'g'et over the main supporting .the block' 1, a strip 3 of canvas, gunny sacking, or other strong fabric, of a length and width to substantially cover the upper surface of both ,thefblock 1 and the run-way memb er,2. This forms asuperior traction point; in other words the beveling of the surface and prevents possibility of splinters and roughnesses of the boards from injuring the tire. l

The above device maybe made from ordinary materials at a very slight cost and may be as conveniently used as other devices for the purpose of supporting the axle while removing a tire, or for any other purpose.

Claims:

1'. A vehicle jack comprising a block having an inclined upper surface and an inclined runway member adapted to be sup ported by'one end on the block and when placed on end to engage the vehicle axle to support it.

2. A vehicle jack comprising a block having ledges on one edge and a runway member having one end cut to fit on said ledges, and its other end notched to form a seat for the vehicle axle.

3. A vehicle jack comprising a block having a taper toward one edge, said-edge being stepped, a runway member of alength to act as a supporting post when placed on end under the axle, one end of said runway member being stepped to fit the steps of the block and also having its end surface cut to produce the high spot well toward one side,

the other end being notched to form a seat for the axle.

Signed at Tacoma, Washington, this 27th day of -August,'l9l9.

JOSEPH s. COOK. 

